1. <?php
  3. /**
  4. * Validates response headers against a configuration with a timeout.
  5. *
  6. * @param array $expectedHeaders Array of expected headers and their values.
  7. * @param int $timeout Timeout in seconds.
  8. * @param string $url The URL to validate.
  9. * @return bool True if all headers are valid, false otherwise.
  10. */
  11. function validateResponseHeaders(array $expectedHeaders, int $timeout, string $url): bool
  12. {
  13. $start = time();
  14. $response = @file_get_contents($url, false, stream_context_create([
  15. 'timeout' => $timeout,
  16. ]));
  18. if ($response === false) {
  19. // Handle timeout or other errors during request
  20. return false;
  21. }
  23. $end = time();
  24. if (($end - $start) > $timeout) {
  25. //Timeout occurred
  26. return false;
  27. }
  29. $headers = get_headers($url);
  31. if ($headers === false) {
  32. return false; //Error getting headers
  33. }
  35. foreach ($expectedHeaders as $headerName => $expectedValue) {
  36. if (isset($headers[0][$headerName])) {
  37. if (strtolower($headers[0][$headerName]) !== strtolower($expectedValue)) {
  38. return false; // Header value does not match
  39. }
  40. } else {
  41. return false; //Expected header is missing
  42. }
  43. }
  45. return true; //All headers are valid
  46. }
  48. // Example Usage:
  49. /*
  50. $expectedHeaders = [
  51. 'Content-Type' => 'application/json',
  52. 'X-Custom-Header' => 'my-value',
  53. ];
  55. $timeout = 5; // seconds
  56. $url = 'https://example.com/api/data';
  58. if (validateResponseHeaders($expectedHeaders, $timeout, $url)) {
  59. echo "Response headers are valid.\n";
  60. } else {
  61. echo "Response headers are invalid.\n";
  62. }
  63. */
  65. ?>

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